01 Record

CVE-2026-63379

Libevent: HTTP Header smuggling

MediumPUBLISHEDCNA: GitHub_M

Base score6.3 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

02 Description

Libevent: HTTP Header smuggling

Published

2026-08-20 17:55Z1 DAY AGO

Last updated

2026-08-20 17:55Z1 DAY AGO

Reserved

2026-07-16

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 6.3)

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Weaknesses

CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')Base

SSVC decision

No CISA-ADP assessment

Data version

5.2

Document digest

7c86fd7c32d4c26f4ba89b6385d6c62dbaa508233e778d6533e28fcec60b2d7f

VendorProductVersionsPlatforms

libeventlibevent< 2.1.13, >= 2.2.0-alpha, < 2.2.2-alpha—